Cast Composite Films

May 31, 2010

At the 2010 LCCDG, Grace Owen and Sarah Reidell, conservators at New York Public Library Goldsmith Conservation Lab, presented some preliminary results using cast composite films.  They are cast with acrylic gel mediums and paints on a silicone mold which replicates the grain of various leathers.  Surface casting techniques were borrowed from objects and painting conservation, and can be attached to a wide variety of substrates.

Grace showed me a couple of the samples she had prepared, and it seems to be a technique that could show great promise for board slotting.  Hopefully, they will present a paper on the subject when their experiments are completed. This seems to be a very exciting prospective treatment– the inherent strength of board slotting combined with visual integration of cast acrylics.  Stay tuned.

Jeff

More on Syringes

May 26, 2010

I noticed that McMaster-Carr sells syringes and needles in the United States. They are currently  available in type 304 stainless steel. Gauge 25, .020″ O.D. fits a 1/64″ blade quite well, $13.97 for 50.  The 21 Gauge, .032″  O.D. fits the thicker 1/32″ blade, also $13.97 for 50.  Both are an easy to handle 1/2″ length.

As Victoria previously mentioned, there are advantage to flexible plastic needles as well.  The thinnest PTFE needle they sell is 22 Gauge, .040″ O.D., $19.43 for 10. They also have a Polypropylene needles, 25 Gauge with a .029″ O.D. for $2.23 each.

WARNING: Their catalog contains over 480,000 products and is highly addictive.

Jeff